摘要
汽油是放火犯罪中最常使用的助燃剂,其提取和检验有重要意义。通过牌号、品牌、产地等信息对汽油进行分类,有助于推断汽油来源和串并比对,缩小侦察范围。当前的汽油分类方法大多可以区分不同汽油的辛烷值、添加剂和地域信息,对放火案件侦办具有借鉴作用。本文对汽油分类基础理论进行了介绍,概述了国内外近年来基于红外光谱、拉曼光谱、气相色谱、质谱等技术的汽油分类方法研究,旨在为汽油分类技术在法庭科学中的应用提供参考。文末讨论了现有汽油分类方法在实际检材中面临的问题,展望了相关研究方向和未来发展趋势。
Gasoline is the most commonly used accelerant in arson crime.The collection and identification is important for the conformation of criminal characteristics.Achieving gasoline classification through the brand,company brand,origin and other information would be helpful for tracing the source of gasoline,narrow the scope of investigation.In this paper,the basis of gasoline classification is introduced,and the methods of gasoline classification based on infrared spectroscopy,Raman spectroscopy,gas chromatography and mass spectrometry in recent years are summarized.The purpose is to provide reference for the application of gasoline classification technology in forensic science.At last,the problems of the existing gasoline classification methods for actual samples are discussed,and the development prospects and future trends are prospected.
作者
张冠男
刘占芳
孙振文
周正
李光耀
李亚军
朱军
ZHANG Guan-nan;LIU Zhan-fang;SUN Zhen-wen;ZHOU Zheng;LI Guang-yao;LI Ya-jun;ZHU Jun(Institute of Forensic Science,Ministry of Public Security,Beijing 100038,China)
出处
《化学研究与应用》
CAS
北大核心
2024年第4期689-695,共7页
Chemical Research and Application
基金
十三五国家重点研发项目(2017YFC0803804)资助
公安部物证鉴定中心基本科研业务费专项资金项目(2021JB010)资助。
关键词
汽油
化学计量学
法庭科学
色谱
光谱
gasoline
chemometrics
forensic science
chromatography
spectroscopy
